English

Impact of finite density on spectroscopic parameters of decuplet baryons

Nuclear Theory 2016-12-07 v2 High Energy Physics - Phenomenology

Abstract

The decuplet baryons, Δ\Delta, Σ\Sigma^{*}, Ξ\Xi^{*} and Ω\Omega^{-}, are studied in nuclear matter by using the in-medium QCD sum rules. By fixing the three momentum of the particles under consideration at the rest frame of the medium, the negative energy contributions are removed. It is obtained that the parameters of the Δ\Delta baryon are more affected by the medium against the Ω\Omega^{-} state, containing three strange quarks, whose mass and residue do not affected by the medium, considerably. We also find the vector and scalar self energies of these baryons in nuclear matter. By the recent progresses at Pˉ\bar{P}ANDA experiment at FAIR and NICA facility it may be possible to study the in-medium properties of such states even the multi-strange Ξ\Xi^{*} and Ω\Omega^{-} systems in near future.

Keywords

Cite

@article{arxiv.1610.09368,
  title  = {Impact of finite density on spectroscopic parameters of decuplet baryons},
  author = {K. Azizi and N. Er and H. Sundu},
  journal= {arXiv preprint arXiv:1610.09368},
  year   = {2016}
}

Comments

12 Pages, 9 Figures and 3 Tables